ajout explication strlcpy

srcs/part1/ft_strlcpy.c

@@ -14,6 +14,10 @@
 **	copy size - 1 length of src into dest,
 **	terminate it with a '\0'
 **	and return size of src
+**	this way, if you try to copy a name in a variable with an available size
+**	of 5 for exemple, if you use ft_strlcpy(variable, name, sizeof(variable))
+**	you will know if the name was too long for the variable by looking at the
+**	return value (which is size of name)
 */
 
 /*